These are VERY high heart rates guys! I think you're definately right about the 240bpm being when the monitor had a bit of a funny moment... I believe it's generally accepted that 220bpm is the physical limit of the heart at birth, hence the maximum heart rate approximations being 220bpm minus your age.
What sort of intensities are you running at Itokuzu? To reach over 200bpm I would suspect you must me gasping for air and about ready to collapse?!
I've just checked my beloved MotionBased account for that run - my heart rate peaked at 201bpm, for a very very VERY brief moment. A glitch with the equipment perhaps?
This was a 40 minute run, in which time I covered 9km of fairly flat terrain. Out of this amount of time my HRM told me I had spent 19.03 minutes in anaerobic zone 5 (running 4.25km at 12.8km per hour). My average heart rate for the run was 167bpm.
This is not a particularly intense run for me, in fact it's fairly average. So I am surprised I spent so much time in the anaerobic zone, which of course is the "pushing it till your eyes are popping out" zone!
Do these figures look odd? If so hopefully it's a problem with my HRM and not my H !! :worried:
Ito.